Reliability of prompt gamma-ray analysis for the determination of Na and Mg in rock samples

被引：5
|
作者：
Karouji, Yuzuru [1 ]
Ebihara, Mitsuru [1 ]
机构：
[1] Tokyo Metropolitan Univ, Dept Chem, Grad Sch Sci & Engn, Tokyo 1920372, Japan
来源：
ANALYTICAL SCIENCES | 2008年 / 24卷 / 05期
关键词：
D O I：
10.2116/analsci.24.659
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The reliability of neutron-induced prompt gamma-ray analysis (PGA) was examined for the determination of Na and Mg in geological and cosmochemical rock samples, because they tend to have been erroneously determined for such samples. JB-1 (basalt standard rock) and Allende (chondritic meteorite) powder samples were repeatedly analyzed by using thermal or cold neutron-guided beams of the JRR-3M research reactor at Japan Atomic Energy Agency. In critically evaluating calculated values for major prompt gamma-rays of Na and Mg, it was observed that a 472.2 keV peak for Na and a 2828.2 keV peak for Mg yielded reasonable consistency with corresponding recommended values. Sodium and Mg were determined for five lunar meteorites by PGA using these prompt gamma-rays, and were found to be consistent with their data obtained by instrumental neutron activation analysis.
引用
收藏
页码：659 / 663
页数：5
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